CAJ | 학술논문

将元宝枫油制成混合脂肪酸乙酯,分别利用多级分子蒸馏提纯和分子蒸馏与尿素包合法相结合提纯神经酸乙酯得到高含量的神经酸乙酯产品.六级分子蒸馏直接提纯神经酸乙酯,得到神经酸乙酯含量为78.35%的产品.二级分子蒸馏与尿素包合法相结合时,分子蒸馏脱除甾醇、维生素E、C16、C18、C20及部分C22,得到神经酸乙酯与芥酸乙酯比例为1:1的初级产品,再在m(脂肪酸乙酯)/m(尿素)/V(甲醇)为1:5:35、包合温度35 ℃、包合时间8 h条件下,经过二次尿素包合处理,可得到神经酸乙酯含量为66.21%的产品.
장원보풍유제성혼합지방산을지,분별이용다급분자증류제순화분자증류여뇨소포합법상결합제순신경산을지득도고함량적신경산을지산품.륙급분자증류직접제순신경산을지,득도신경산을지함량위78.35%적산품.이급분자증류여뇨소포합법상결합시,분자증류탈제치순、유생소E、C16、C18、C20급부분C22,득도신경산을지여개산을지비례위1:1적초급산품,재재m(지방산을지)/m(뇨소)/V(갑순)위1:5:35、포합온도35 ℃、포합시간8 h조건하,경과이차뇨소포합처리,가득도신경산을지함량위66.21%적산품.
The fatty acid ethyl esters were prepared from Acer truncatum Bunge seed oil,and then the separation process of nervonic acid ethyl ester by molecular distillation directly or combination of molecular distillation and urea-inclusion method was studied.The content of nervonic acid ethyl ester reached 78.35% by six-step molecular distillation.When the molecular distillation and urea-inclusion was combined to separate nervonic acid,two-step molecular distillation was used to separate the sterols,V_E,C16 fatty acid ethyl esters,C18 fatty acid ethyl esters,C20 fatty acid ethyl esters and a part of C22 fatty acid ethyl esters,and the crude product with the ratio of nervonic acid ethyl ester to erucic acid ethyl ester 1:1 was obtained,then the urea-inclusion method was used to purify nervonic acid ethyl ester,and the operation conditions were:ratio of fatty acid ethyl esters mass to urea mass to methanol volume 1: 5:35,temperature 35 ℃ and time 8 h.The content of nervonic acid ethyl ester reached 66.21% by the combination of two-step molecular distillation and twice urea-inclusion.